/// <summary>
/// 最近季度的
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static DatePair GetQuarterArea(this DateTime input)
{
DatePair ret = new DatePair();
int month = input.Month;
if (month >= 1 & month <= 3)
{
ret.BegDate = new DateTime(input.Year, 1, 1);
ret.EndTDate = new DateTime(input.Year, 4, 1);
}
else if (month >= 4 & month <= 6)
{
ret.BegDate = new DateTime(input.Year, 4, 1);
ret.EndTDate = new DateTime(input.Year, 7, 1);
}
else if (month >= 7 & month <= 9)
{
ret.BegDate = new DateTime(input.Year, 7, 1);
ret.EndTDate = new DateTime(input.Year, 10, 1);
}
else
{
ret.BegDate = new DateTime(input.Year, 10, 1);
ret.EndTDate = new DateTime(input.Year, 1, 1).AddYears(1);
}
return(ret);
}
/// <summary>
/// 最近本年的
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static DatePair GetYearArea(this DateTime input)
{
DatePair ret = new DatePair()
{
BegDate = new DateTime(input.Year, 1, 1), EndTDate = new DateTime(input.Year + 1, 1, 1)
};
return(ret);
}
/// <summary>
/// 最近当月的
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static DatePair GetMonthArea(this DateTime input)
{
DatePair ret = new DatePair();
ret.BegDate = new DateTime(input.Year, input.Month, 1);
ret.EndTDate = ret.BegDate.AddMonths(1);
return(ret);
}
/// <summary>
/// 最近两天
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static DatePair Get2DayArea(this DateTime input)
{
DatePair ret = new DatePair();
ret.BegDate = input.Date.AddDays(-1);
ret.EndTDate = input.Date.AddDays(1);
return(ret);
}
/// <summary>
/// 最近本周
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public static DatePair GetWeek(this DateTime input)
{
int DayOfWeekint = (int)input.Date.DayOfWeek;
var a = input.Date.AddDays((-1) * DayOfWeekint + 1);
var b = input.Date.AddDays((7 - DayOfWeekint) + 1);
DatePair model = new DatePair()
{
BegDate = a, EndTDate = b
};
return(model);
}
/// <summary>
/// 根据区间找到月的区间列表
/// </summary>
/// <param name="begTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
public static List <DatePair> GetMonthList(DateTime begTime, DateTime endTime)
{
List <DatePair> list = new List <MathSoftCommonLib.DatePair>();
DateTime begTime1 = new DateTime(begTime.Year, begTime.Month, 1);
DateTime endDate1 = new DateTime(endTime.Year, endTime.Month, 1);
for (DateTime a = begTime1; a <= endDate1; a = a.AddMonths(1))
{
DatePair pair = new DatePair()
{
BegDate = a, EndTDate = a.AddMonths(1)
};
list.Add(pair);
}
return(list);
}
/// <summary>
/// 根据区间找到天的区间列表
/// </summary>
/// <param name="begTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
public static List <DatePair> GetDayList(DateTime begTime, DateTime endTime)
{
List <DatePair> list = new List <DatePair>();
DateTime begDate = begTime.Date;
DateTime endDate = endTime.Date;
for (DateTime a = begDate; a <= endDate; a = a.AddDays(1))
{
DatePair pair = new DatePair()
{
BegDate = a, EndTDate = a.AddDays(1)
};
list.Add(pair);
}
;
return(list);
}
/// <summary>
/// 根据区间找到年的区间列表
/// </summary>
/// <param name="begTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
public static List <DatePair> GetYearsList(DateTime begTime, DateTime endTime)
{
List <DatePair> list = new List <MathSoftCommonLib.DatePair>();
int begYear = begTime.Year;
int endYear = endTime.Year;
IEnumerable <int> listYear = Enumerable.Range(begYear, endYear - begYear + 1);
foreach (var item in listYear)
{
DatePair pair = new DatePair()
{
BegDate = new DateTime(item, 1, 1), EndTDate = new DateTime(item, 1, 1).AddYears(1)
};
list.Add(pair);
}
return(list);
}
/// <summary>
/// 根据区间找到周的区间列表 如果不到周的就按照周围日期补齐
/// </summary>
/// <param name="begTime"></param>
/// <param name="endTime"></param>
/// <returns></returns>
public static List <DatePair> GetWeekList(DateTime begTime, DateTime endTime)
{
List <DatePair> list = new List <MathSoftCommonLib.DatePair>();
int DayOfWeekint1 = (int)begTime.Date.DayOfWeek;
int DayOfWeekint2 = (int)endTime.Date.DayOfWeek;
var beg = begTime.Date.AddDays((-1) * DayOfWeekint1 + 1);
var end = endTime.Date.AddDays((7 - DayOfWeekint2) + 1);
for (var a = beg; a < end; a = a.AddDays(7))
{
DatePair obj = new DatePair()
{
BegDate = beg, EndTDate = beg.AddDays(6)
};
list.Add(obj);
}
return(list);
}
